diff options
Diffstat (limited to 'test/validation/api/random/random.c')
| -rw-r--r-- | test/validation/api/random/random.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/test/validation/api/random/random.c b/test/validation/api/random/random.c index cf7163e2d..481ceb303 100644 --- a/test/validation/api/random/random.c +++ b/test/validation/api/random/random.c @@ -9,11 +9,31 @@ static void random_test_get_size(void) { - int32_t ret; + /* odp_random_data may fail to return data on every call (i.e. lack of + * entropy). Therefore loop with some sane loop timeout value. Note that + * it is not required for implementation to return data in the "timeout" + * amount of steps. Rather it is a way for preventing the test to loop + * forever. + * Also note that the timeout value here is chosen completely + * arbitrarily (although considered sane) and neither platforms or + * applications are not required to use it. + */ + int32_t ret, timeout_ns = 1 * ODP_TIME_MSEC_IN_NS, sleep_ns = 100; + uint32_t bytes = 0; uint8_t buf[32]; - ret = odp_random_data(buf, sizeof(buf), ODP_RANDOM_BASIC); - CU_ASSERT(ret == sizeof(buf)); + do { + ret = odp_random_data(buf + bytes, sizeof(buf) - bytes, + ODP_RANDOM_BASIC); + bytes += ret; + if (ret < 0 || bytes >= sizeof(buf)) + break; + odp_time_wait_ns(sleep_ns); + timeout_ns -= sleep_ns; + } while (timeout_ns > 0); + + CU_ASSERT(ret > 0); + CU_ASSERT(bytes == (int32_t)sizeof(buf)); } static void random_test_kind(void) |